Integrated Building Management - Room Control

Room Control


The purpose of room control is to provide a comfortable environment for building occupants at the lowest possible energy consumption. Providing a comfortable environment goes beyond just temperature control. Depending on the building's needs, it could include looking at the indoor air quality and/or humidity, maintaining the desired light level, glare or privacy protection, or even providing different light colors depending on the room use. The key to minimizing the energy consumption is controlling room conditions based on the actual demand, to avoid the excess consumption of heating, cooling, and lighting energy.

This includes reacting to room occupancy, but can also involve the active management of blind and shutters.

Ease of use is another key factor. People want a consistent user interface covering the whole room − not several inconsistent user interfaces for the different equipment. It is also important to provide a nice, harmonic room design. The amount of sensors and user interfaces must therefore be kept at a minimum and nicely fit to the room design.

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CentraLine offers a comprehensive set of freely programmable and configurable room controllers for a large variety of HVAC room applications (e.g., Fan Coil Units, Chilled Ceiling, Hydronic Heating, or VAV applications). These include solutions for the management of lighting, shutters, and blinds along with temperature control. For special customer needs, CentraLine also offers a vast series of freely programmable room controllers which satisfy the requirements of any room configuration.

For premium hotels, CentraLine is happy to provide the top class hotel guest room management solution from INNCOM, which combines guest room temperature control with integrated lighting management targeted specifically at the "high end" hospitality market.

Finally, Honeywell's EasyClickPro wireless light and blind control solutions are an excellent choice for retrofit opportunities. They allow the easy replacement of conventional installations with electronic light and blind controllers.

Battery-less switches that can be installed where needed, independent of the presence of wires. In contrast to similar 3rd-party offerings, the EasyClickPro wireless solutions are designed from ground up for integration with the CentraLine BMS system.

All the aforementioned room controllers are networked, providing the basis for demand-driven applications which optimize energy consumption by requesting only the minimum amount of energy to maintain comfortable room conditions from the primary plant controllers.

Using CentraLine's smart embedded integration platform HAWK or EAGLEHAWK, room control can easily be extended to include wired light and blind control via KNX, DALI, or the wireless EnOcean protocol. For hotel applications, HAWK can also communicate with the room reservation system using a Fidelio protocol, which saves energy for unrented rooms.

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Room Control




Freely programmable Niagara-based BACnet MS/TP room controller for integrated room management.



Freely programmable room controller for FCU, hydronic heating and cooling, VAV, and other applications. Choice of LONWORKS FTT-10A or BACnet MS/TP bus for integration with CentraLine plant controllers.



Hotel guest room management system for top class hotels. Choice of integration to CentraLine plant controllers through a wireless gateway or a BACnet TCP/IP server interface.



Wireless and batteryless system for lighting, shutter and room temperature control, based on the market leading EnOcean standard. Energy efficient, maintenance free, extensive and flexible where use of space utilization changes.



Smart integration platform, with BACnet (IP and MSTP) incl. B-BC certification, LONWORKS (FTT-10A and IP), Modbus, M-BUS, DALI, KNX, Enocean, integration of CCTV, security and fire/smoke control.



Integrated building controller, with BACnet (IP and MSTP) incl. B-BC certification, LONWORKS (FTT-10A and IP), Modbus, M-BUS, DALI, KNX, Enocean. Integration of lighting, shading, and other buildings applications.



TR42/CLCMTR42 (Sylk communicating, used with LYNX only, models available with integrated R.H. and CO2)



CLCM1T-CLCM6T, CLCM1H, CLCM6H, CLCM1C, CLCM4C (Analog outputs, with or without display, models available with integrated R.H. and CO2, used with PANTHER, SERVAL, LION, and FALCON)
Wall Modules provide access to temperature setpoint, fan speed, and occupied status, as well as providing space temperature on models with display. Temperature setpoint ranges can be adjusted to limit tenant or guest settings.



In rooms with changing use, a significant amount of energy can be saved when managing the room according to its current occupation status. Hotel rooms are a good example: There is no reason why a room should remain in comfort conditions when no guest is present. CentraLine room solutions can integrate with hotel management systems using a Fidelio driver. Through this connection, the BMS system knows which rooms are rented. Based on the information on whether a room is rented or not and based on its occupancy status, the BMS system can then adjust the "zero energy band" of the room controllers:

  • When a room is not rented, the temperature is allowed to float significantly around the setpoint. Heating or cooling will be activated only if the temperature reaches critical levels.
  • If the room is rented but not occupied, the temperature deviation is restricted by putting the room in standby mode. This preconditions the room such that it can quickly reach comfort condition once the guest steps into the area. In unoccupied rooms, the lights can also be automatically switched off to avoid energy waste caused by occupants forgetting to switch off electrical consumers. 
  • If the room is rented and occupied, the temperature is controlled around minimum deviation from the selected setpoint to provide maximum comfort to the guest.

In combination with the demand-driven system architecture of CentraLine solutions, only the minimum energy to maintain the required temperature levels is produced, thus providing significant energy savings.

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